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Finding the Fourth Proportional to 6,239.28, 8,604.12 and 4,747.32

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Solution

The fourth proportional to 6,239.28, 8,604.12 and 4,747.32 is: 6,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.28 : 8,604.12 = 4,747.32 : x
  2. Step 2: Convert to fraction form
    6,239.28/8,604.12 = 4,747.32/x
  3. Step 3: Cross multiply
    6,239.28x = 8,604.12 × 4,747.32
  4. Step 4: Simplify right side
    6,239.28x = 40,846,510.96
  5. Step 5: Solve for x
    x = 40,846,510.96/6,239.28
  6. Step 6: Final answer
    x = 6,546.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.